What is API Substack?

Manually using the Substack web editor to create, schedule, and publish posts and newsletters. It is catalogued under Developer Tools on PulseGate.

Who should use API Substack?

API Substack is a consumer product built for substack newsletter authors and developers.

Does API Substack have a free plan?

Yes — there is a free tier, with paid plans for advanced use.

What platforms does API Substack run on?

API Substack runs on the command line and API.

Is API Substack still maintained?

Unverified. API Substack has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.

What projects are similar to API Substack?

Similar projects tracked by PulseGate include EfficiencyNext Data Connector, CKB, and GITVERSE.

Who makes API Substack?

API Substack is developed by API Substack.

How long has API Substack been around?

API Substack first shipped in 2025.

Back to the index

API Substack

Name: API Substack
Author: API Substack

apisubstack.comInfrastructure

API Substack enables authors to interact with Substack via API, Python SDK, CLI, or MCP without using the browser editor. It supports drafting, publishing, and scheduling of posts, newsletters, and notes. Integrations with Make.com, n8n, Zapier, Claude, and ChatGPT are highlighted for workflow automation.

FreemiumCLIAPI

Visit apisubstack.com

Overview

5 features

In the Developer Tools space, API Substack takes a focused approach. Manually using the Substack web editor to create, schedule, and publish posts and newsletters. API Substack is a consumer product aimed at substack newsletter authors and developers. A free plan is available. It runs on the command line and API.

It is developed by API Substack, and it first shipped in 2025. Key capabilities include Post Drafting, Scheduled Publishing, and Python SDK. It exposes integrations via an MCP server, a public API, and a Zapier integration.

Summary written by a language model from the project’s public pages.

Post Drafting
Scheduled Publishing
Python SDK
CLI Commands
MCP Server

Built with & integrations

Framework

Next.js

Hosting

Cloudflare

Connectors

MCPAPIZapier

Runs on

CLIAPI-only

Detected from

Next.js: x-nextjs-cache header · x-nextjs-prerender header · x-powered-by header
Cloudflare: cf-ray header

Trust & compliance

Verified signals

HTTPSFree tier

Indexing history

What PulseGate has recorded for this listing

Indexed28 Jul · 14:54 UTC
Show HN: The Posting Substack API verified against its public source
Source: PulseGate · Open

Frequently asked questions about API Substack

What is API Substack?: Manually using the Substack web editor to create, schedule, and publish posts and newsletters. It is catalogued under Developer Tools on PulseGate.
Who should use API Substack?: API Substack is a consumer product built for substack newsletter authors and developers.
Does API Substack have a free plan?: Yes — there is a free tier, with paid plans for advanced use.
What platforms does API Substack run on?: API Substack runs on the command line and API.
Is API Substack still maintained?: Unverified. API Substack has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.
What projects are similar to API Substack?: Similar projects tracked by PulseGate include EfficiencyNext Data Connector, CKB, and GITVERSE.EfficiencyNext Data Connector CKB GITVERSE
Who makes API Substack?: API Substack is developed by API Substack.
How long has API Substack been around?: API Substack first shipped in 2025.

At a glance

Pricing: Freemium · pricing page detected · free tier
Platforms: Api · Cli
Languages: English
Built for: Substack newsletter authors and developers
Model: B2C
Solves: Manually using the Substack web editor to create, schedule, and publish posts and newsletters.

Live coverage

Identity confidence: High · 87.8
Indexed: 28 Jul 2026
Lifecycle: Alive
Last seen: 28 Jul 2026

Identity audit (13)

Slug: show-hn-the-posting-substack-api-apisubstack-com
Lifecycle state recorded: 28 Jul 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 28 Jul 2026
Timeline basis: Indexed-at chronology. This listing's first-seen date was written by the catalog backfill, not observed here, so it is not treated as a sighting.
Name from: Derived from the project's own page and URL.
Category from: Assigned by a language model.
Summary from: Written by a language model from public pages.
Languages from: Detected by a language model, checked against the page's own declaration.
Last updated: 5 Aug 2026
Canonical URL: https://apisubstack.com/

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